• YAKHAK HOEJI
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• v.8 no.1
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• pp.12-29
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• 1964

The oral administration of deer horn extract was proved to cause a considerable amelioration to the impairment of hepatic oxidative phosphorylation and to the decrease of ATP content in liver tissue induced by cholesterol ingestion. Deer horn extract was shown to accelerate considerably incorporation of acetate-1-C$^{14}$ into cholesterol in liver tissue and it tends to restore a decrease of GOT activity of liver tissue, caused by cholesterol administration. Histological examination showed that deer horn extract had a remarkable preventive effect against fatty infiltration of organs such as liver, heart, spleen, and adrenal gland of cholesterol given rabbits.

• Proceedings of the IEEK Conference
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• 1998.06a
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• pp.685-688
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• 1998

Measurement of optical flow is a core problem of matching through the analysis of image sequences. In this paper, horn's and anandan's techniques are analyzed to derive a better technique for matching. Experimental results show that Horn's technique has low accuracy in measuring the velocity of optical flow while anandan's technique has poor performaance for diverging images. Based upon this observation, a new technique for the measurement of optical flow is proposed.

• Special Issue of the Society of Naval Architects of Korea
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• 2006.09a
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• pp.77-80
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• 2006

In recent booming up of the ship building market, the supplying of large scale casting is difficult to keep the delivery schedule for ship yard because of the restrict manufacturer in Korea. And also, it is main cause to rise-up the cost of castings. This paper describes the outline of guidance of optimizing design for Rudder Horn Casting to reduce the risk of the delivery problem to ship yard.

• Journal of Pharmaceutical Investigation
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• v.6 no.3
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• pp.14-19
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• 1976

Influence of deer horn on serum cholesterol level as well as growth rate of experimental cholesterol-fed rabbit were observed. The cholesterol level rose progressively in all cholesterol-fed rabbit and only after 17th day of experiment, cholesterol-level in animal treated with deer horn significantly increased at much lower rate than control group. Above results suggested that deer horn might decrease the abnormally elevated serum cholesterol.

• Proceedings of the KIEE Conference
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• 1997.07e
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• pp.1734-1736
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• 1997

Insulator strings can be frequently damaged by fault currents occured by lightning strokes, overvoltages and contamination of the insulators. So the Insulator damages may lead to extensive damages to transmission lines as well as power outages that have caused dangerous situations to occur. This paper suggests the characteristics of arcing horn in relation to the protection of insulators and basic design concepts of the arcing horn for transmission lines.

• Bulletin of the Korean Space Science Society
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• 2004.10b
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• pp.316-320
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• 2004

This paper describes Ka-band antenna performance analysis of COMS satellite. The key parameters of the antenna system are optimal antenna diameter, feed horn type and horn size, F/D, and the coordinate of offset horns. The paper deals with the method to determine design core parameters of optimal antenna diameter, feed horn type and horn size, F/D, and the coordinate of offset horns, and the performances of design result.

• Proceedings of the IEEK Conference
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• 2002.06a
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• pp.215-218
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• 2002

Design methods are presented for a broadband corrugated horn antenna operating X/Ku band (7.25-14.5 CHz). The corrugated horn consists of a circular waveguide taper, a mode converter, a waveguide-to-horn transition, and a hem section. Methods of design are presented for each section. The designed antenna shows excellent characteristics over the entire operating frequency range.

• YAKHAK HOEJI
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• v.5 no.1
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• pp.1-2
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• 1960

Six kinds of free amino acids, leucine, methionine, threonine, lysine, histidine and aspartic acid were found by using partition paper chromatography from water extract of deer horn which is widely used as tonic drug. The results shows that deer horn does not contain any specific free amino acid.

• Conservation Science in Museum
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• v.25
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• pp.51-62
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• 2021

The Belt with Rhinoceros-Horn Ornaments(known as a seodae in Korean) from the family of Princess Deokon's descendants housed in the National Hangeul Museum underwent emergency treatment for a special exhibition in 2019 upon the request of the National Hangeul Museum. Priority was given to the restoration of the original form of the severely damaged belt and the repair of its detached horn ornaments. Prior to the conservation treatment, researchers conducted a theoretical study of the belt with rhinoceros-horn adornments to learn the names of its structural components and the changes in form that the type experienced by period, thereby establishing a plan for conservation treatment and setting a direction. Among the belts worn by officials from the Joseon dynasty, rhinoceros-horn ornaments were attached to those of officials of the first rank and were considered the most precious behind the king's belt with its jade ornaments. The rhinoceros horn adorning the belt is classified into three categories according to quality. This belt has horn adornments of the highest quality, falling under the "grape design" category with dark brown dots concentrated in the center. The belt has a rectangular shape and lacks a buckle, reflecting a popular form from the nineteenth century. The structure of the belt was identified over the process of conservation treatment, offering information about its method of production. In addition, comparison of the relic with belts with rhinoceros-horn ornaments depicted in Joseon-period portraits of officials allowed the identification of changes in formal features and the detailed structures of belts with rhinoceros-horn ornaments by period. It confirmed that the belt subject to conservation treatment shows the features of belts with rhinoceros-horn ornaments produced in the nineteenth and twentieth centuries.

• The Journal of the Acoustical Society of Korea
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• v.20 no.6
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• pp.57-65
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• 2001

In this paper, we designed the acoustic horn for magnetostrictive ultrasonic transducers in a theoretical manner, and validity of the analysis was verified through comparison with the results of finite element analysis. Results of the two analysis methods showed good agreement with each other. The theoretical method can fairly quickly determine the horn length that satisfies given frequency specification, but also has the drawback that it is applicable only to the frequency range over the cut-off frequency. According to the results, the catenoidal horn can provide larger amplification than the exponential horn. It was also found that it is more desirable for the region having the catenoidal curvature to be as short as possible to achieve larger amplification of the transducer deformation. Based on the analysis results, a magneto-strictive transducer sample was fabricated and its performance was evaluated experimentally. The transducer has the resonance frequency of 19.3 ㎑ as well as the maximum SPL of 199 dB, and shows the omni-directional radiation pattern.